Organic el device and method of producing the device

Abstract

Provided is an organic EL device including a substrate, a lower electrode, an organic compound layer containing one of an alkali metal and an alkali metal compound, an upper electrode formed of an oxide film, and passivation layers for covering the lower electrode, the organic compound layer, and the upper electrode, the lower electrode, the organic compound layer, the upper electrode, and the passivation layers being stacked in the stated order on the substrate, in which the passivation layers include a first passivation layer formed on the upper electrode, which contains silicon as a main component, and which is free of hydrogen and a second passivation layer formed on the first passivation layer which contains silicon as a main component and hydrogen.

1. An organic electroluminescence device comprising:
 a substrate; 
 a lower electrode; 
 an organic compound layer containing one of an alkali metal and an alkali metal compound; 
 an upper electrode formed of an oxide film; and 
 passivation layers for covering the lower electrode, the organic compound layer and the upper electrode, 
 wherein the passivation layers comprise: 
 a first passivation layer formed on the upper electrode, which contains silicon as a main component and which is free of hydrogen; and 
 a second passivation layer formed on the first passivation layer which contains silicon as a main component and hydrogen. 
 
     
     
       2. The organic electroluminescence device according to  claim 1 , wherein the first passivation layer comprises one or more insulating films each formed of one of an oxide, a nitride and an oxynitride. 
     
     
       3. The organic electroluminescence device according to  claim 1 , wherein one of the alkali metal and the alkali metal compound comprises one of cesium and a cesium compound. 
     
     
       4. The organic electroluminescence device according to  claim 3 , wherein the cesium compound comprises at least one selected from the group consisting of cesium carbonate, a substance derived from cesium carbonate and a coordination compound in which cesium coordinates with an organic compound in the organic compound layer.